JPS63220612A - Capacitor built-in vibrator - Google Patents
Capacitor built-in vibratorInfo
- Publication number
- JPS63220612A JPS63220612A JP5303087A JP5303087A JPS63220612A JP S63220612 A JPS63220612 A JP S63220612A JP 5303087 A JP5303087 A JP 5303087A JP 5303087 A JP5303087 A JP 5303087A JP S63220612 A JPS63220612 A JP S63220612A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- electrode
- ceramic plate
- vibrator
- capacitors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 42
- 239000000919 ceramic Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005245 sintering Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 11
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔概 要〕
コンデンサ内蔵型振動子であって、中空部を有するリン
グ状の平板誘電体の表表面及び裏表面に電極を形成して
１対のコンデンサを形成し、その中空部に振動素子を実
装することにより、小型化及び製造の容易化を図ったも
のである。[Detailed Description of the Invention] [Summary] A vibrator with a built-in capacitor, in which electrodes are formed on the front and back surfaces of a ring-shaped flat dielectric material having a hollow part to form a pair of capacitors. By mounting a vibrating element in the hollow portion, miniaturization and ease of manufacture are achieved.
本発明はコンデンサ内蔵型振動子に関する。 The present invention relates to a vibrator with a built-in capacitor.
近年、コンデンサ内蔵型振動子は、例えばディジタル機
器におけるクロック信号発生用として広く使用される傾
向にある。このコンデンサ内蔵型振動子は、第５図にそ
の基本回路図を示すように、基本的には振動素子１１と
１対のコンデンサ１２及び１３とから構成されている。In recent years, vibrators with built-in capacitors have been widely used for generating clock signals in digital equipment, for example. This capacitor built-in type vibrator basically consists of a vibrating element 11 and a pair of capacitors 12 and 13, as shown in the basic circuit diagram in FIG.
そして、振動素子１１の両端には端子１４及び１５が、
コンデンサ１２及び１３の中点には端子１６がそれぞれ
形成される。Terminals 14 and 15 are provided at both ends of the vibrating element 11.
Terminals 16 are formed at the midpoints of capacitors 12 and 13, respectively.
第６図は従来のコンデンサ内蔵型振動子の断面図である
。図中、２１はセラミック基板を示し、このセラミック
基板２１上には、導電体ペースト、誘電体ペースト及び
導電体ペーストをこの順に順次塗布・焼結することによ
り形成される、導体２２ａ、誘電体２２ｂ及び導体２２
Ｃからなるコンデンサ２２並びに導体２２ａ、誘電体２
２ｂ及び導体２３ｃからなるコンデンサ２３が形成され
ている。そして、コンデンサ２２及び２３のそれぞれの
導体２２ｃ及び２３ｃ上には、導電樹脂２４及び２５を
介して、振動素子２６が搭載されている。そして、これ
らのコンデンサ２２及び２３並びに振動素子２６は、キ
ャップ２７によってシールされている。FIG. 6 is a sectional view of a conventional capacitor built-in vibrator. In the figure, 21 indicates a ceramic substrate, and a conductor 22a and a dielectric 22b are formed on the ceramic substrate 21 by sequentially applying and sintering a conductor paste, a dielectric paste, and a conductor paste in this order. and conductor 22
A capacitor 22 made of C, a conductor 22a, and a dielectric 2
A capacitor 23 is formed of a conductor 2b and a conductor 23c. A vibrating element 26 is mounted on the conductors 22c and 23c of the capacitors 22 and 23 via conductive resins 24 and 25, respectively. These capacitors 22 and 23 and vibration element 26 are sealed with a cap 27.
更に、導体２２ｃはスルーホール２８を介して端子２９
に、導体２３Ｃはスルーホール３０を介して端子３１に
それぞれ電気的に接続されている。また、導体２２ａは
、スルーホール３２を介して、端子３３に電気的に接続
されている。Furthermore, the conductor 22c is connected to the terminal 29 via the through hole 28.
Furthermore, the conductors 23C are electrically connected to terminals 31 through through holes 30, respectively. Further, the conductor 22a is electrically connected to a terminal 33 via a through hole 32.
なお、振動素子２６、コンデンサ２２、コンデンサ２３
、端子２９、端子３１及び端子３３か、第５図における
振動素子１１、コンデンサ１２、コンデンサ１３、端子
１４、端子１５及び端子１６にそれぞれ対応する。Note that the vibration element 26, the capacitor 22, and the capacitor 23
, terminal 29, terminal 31, and terminal 33 correspond to the vibrating element 11, capacitor 12, capacitor 13, terminal 14, terminal 15, and terminal 16 in FIG. 5, respectively.
従来のコンデンサ内蔵型振動子は、−１−述したように
、セラミック基板２１上にコンデンサ２２及び２３を形
成し、形成したコンデンサ２２及び２３１−に振動素子
２６を搭載し、更にキャップ２７を被せるという構造を
有しているため、製品としてのザイスが大きくなるとい
う問題点を有していた。また、キャップ２７の実装に当
っては正確に位置決めをする必要があり、製造か困難で
あった。In the conventional capacitor built-in vibrator, as described above, the capacitors 22 and 23 are formed on the ceramic substrate 21, the vibrating element 26 is mounted on the formed capacitors 22 and 231, and the cap 27 is further covered. Because of this structure, there was a problem in that the size of the product was large. Further, when mounting the cap 27, it is necessary to position it accurately, which makes manufacturing difficult.
本発明は上記問題点に鑑みてなされたもので、製品の小
型化及び製造の容易化を図ったコンデンサ内蔵型振動子
を提供することを目的とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a capacitor built-in vibrator that is miniaturized and easy to manufacture.
に読口的を達成するため、本発明によれば、中空部を有
するリング状の平板誘電体の表表面及び裏表面に該表表
面及び裏表面を挟むようにして】対の対向電極を２絹付
設することにより形成される１対のコンデンサと、該中
空部内に配置され、その両端部の各々が該１対のコンデ
ンサの各々にそれぞれ電気的に接続される振動素子とを
具備するコンデンサ内蔵型振動子か提供される。In order to achieve reading accuracy, according to the present invention, two pairs of counter electrodes are attached to the front and back surfaces of a ring-shaped flat plate dielectric having a hollow portion so as to sandwich the front and back surfaces. A vibration device with a built-in capacitor, comprising a pair of capacitors formed by the above-mentioned method, and a vibration element disposed within the hollow part, each of which has its opposite ends electrically connected to each of the pair of capacitors. Child provided.
以下、図面を参照して本発明の一実施例を説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は本発明に係るコンデンサ内蔵型振動子の斜視図
であり、第２図は第１図におけるｎ−ｎ線矢視断面図で
あり、第３図は第１図における■−■線矢視断面図であ
る。図中、■は誘電体としてのリング状セラミック板を
示し、このセラミック板１は中空部２を有している。セ
ラミック板１の一方の面には電極３ａ及び３ｂが、他方
の面にはほぼ全体にわたって電極４か、導電体ペースト
を塗布・焼結することにより、それぞれ形成されている
。この結果、電極３ ａ−、セラミック板１及び電極４
からなる第１コンデンサ及び電極３ｂ、セラミック板１
及び電極４からなる第２コンデンサが形成されることに
なる。FIG. 1 is a perspective view of a capacitor built-in vibrator according to the present invention, FIG. 2 is a sectional view taken along the line nn in FIG. 1, and FIG. 3 is a sectional view taken along the line ■-■ in FIG. It is an arrow sectional view. In the figure, ■ indicates a ring-shaped ceramic plate as a dielectric, and this ceramic plate 1 has a hollow portion 2. Electrodes 3a and 3b are formed on one surface of the ceramic plate 1, and electrodes 4 or a conductive paste is formed on almost the entire surface of the other surface by applying and sintering the electrodes 3a and 3b, respectively. As a result, electrode 3a-, ceramic plate 1 and electrode 4
A first capacitor and an electrode 3b consisting of a ceramic plate 1
A second capacitor consisting of the electrode 4 and the electrode 4 is formed.
５ａ 、５ｂ及び６は端子を示す。これらの端子５ａ
、５ｂ及び６は、銅の薄板で作られており、それぞれ電
極３ａ 、３ｂ及び４と電気的に接触している。5a, 5b and 6 indicate terminals. These terminals 5a
, 5b and 6 are made of copper thin plates and are in electrical contact with electrodes 3a, 3b and 4, respectively.
セラミック板１の中空部２内には振動素子７が配置され
ており、この振動素子７の両端は、導電樹脂８ａ及び８
ｂを介して、端子５ａ及び５ｂにそれぞれ電気的に接続
されている。A vibrating element 7 is arranged in the hollow part 2 of the ceramic plate 1, and both ends of the vibrating element 7 are connected to conductive resins 8a and 8.
It is electrically connected to terminals 5a and 5b, respectively, via b.
なお、振動素子７、端子５ａ、端子５ｂ及び端子６は、
前述した第５図における振動素子１１、端子１４、端子
１５及び端子１６にそれぞれ対応し、また、電極３ａ、
セラミック板１及び電極４からなる上記第１コンデンサ
並びに電極３ｂ、セラミック板１及び電極４からなる上
記第２コンデンザか第５図におけるコンデンサ１２並び
にコンデンサ１３にそれぞれ対応する。Note that the vibration element 7, the terminal 5a, the terminal 5b, and the terminal 6 are as follows:
These correspond to the vibrating element 11, the terminal 14, the terminal 15, and the terminal 16 in FIG. 5, respectively, and also the electrodes 3a,
The first capacitor consisting of the ceramic plate 1 and the electrode 4 and the second capacitor consisting of the electrode 3b, the ceramic plate 1 and the electrode 4 correspond to the capacitor 12 and the capacitor 13 in FIG. 5, respectively.
第４図は、第１図乃至第３図に示す本発明に係るコンデ
ンサ内蔵型振動子の主要部の上下に樹脂性キャップ９及
び１０を被せることにより、チップ型に構成したコンデ
ンサ内蔵型振動子の斜視図である。本発明においては、
キャップ９及び１０を被せる場合、車にそれらをセラミ
ック板１、電極３ａ、３ｂ、４及び端子５ａ、５ｂ、６
に接着剤を用いて接着するだけでよく、製造が容易であ
る。FIG. 4 shows a capacitor built-in vibrator constructed into a chip type by covering the upper and lower parts of the main parts of the capacitor built-in vibrator shown in FIGS. 1 to 3 with resin caps 9 and 10. FIG. In the present invention,
When caps 9 and 10 are placed on the car, they are attached to the ceramic plate 1, electrodes 3a, 3b, 4 and terminals 5a, 5b, 6.
It is easy to manufacture as it only needs to be attached using adhesive.
以上説明したように、本発明のコンデンサ内蔵型振動子
によれば、中空部を有する誘電体に電極を形成して１対
のコンデンサを形成し、その中空部に振動素子を配置す
るようにしたので、製品の小型化が図れる。また、キャ
ップを被せる場合、単にキャップを接着するだけでよい
ため、製造の容易化が図れる。As explained above, according to the capacitor built-in vibrator of the present invention, electrodes are formed in a dielectric material having a hollow part to form a pair of capacitors, and a vibrating element is arranged in the hollow part. Therefore, the product can be made smaller. Furthermore, when putting a cap on the device, it is sufficient to simply glue the cap on, which facilitates manufacturing.
第１図は本発明の一実施例の斜視図、
第２図は第１図・におけるｎ−ｎ線矢視断面図、第３図
は第１図におけるｕｒ−ｍ線矢視断面図、第４図はチッ
プ型に構成した実施例の斜視図、第５図はコンデンサ内
蔵型振動子の基本回路図、及び
第６図は従来例の断面図である。
１・・・セラミック板、 ２・・・中空部、３ａ
、３ｂ、４・・・電極、
５ａ、５ｂ、６・・・端子、
７・・・振動素子、
８ａ 、８ｂ・・・導電樹脂。FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line nn in FIG. 1, FIG. 3 is a cross-sectional view taken along line ur-m in FIG. FIG. 4 is a perspective view of an embodiment configured in a chip type, FIG. 5 is a basic circuit diagram of a vibrator with a built-in capacitor, and FIG. 6 is a sectional view of a conventional example. 1... Ceramic plate, 2... Hollow part, 3a
, 3b, 4... Electrode, 5a, 5b, 6... Terminal, 7... Vibration element, 8a, 8b... Conductive resin.
Claims (1)
裏表面に該表表面及び裏表面を挟むようにして１対の対
向電極を２組付設することにより形成される１対のコン
デンサと、 該中空部内に配置され、その両端部の各々が該１対のコ
ンデンサの各々にそれぞれ電気的に接続される振動素子
と、 を具備するコンデンサ内蔵型振動子。[Claims] 1. Formed by attaching two pairs of opposing electrodes to the front and back surfaces of a ring-shaped flat plate dielectric having a hollow portion so as to sandwich the front and back surfaces. A vibrator with a built-in capacitor, comprising: a pair of capacitors; and a vibrating element disposed within the hollow portion, each of which has both ends electrically connected to each of the pair of capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5303087A JPS63220612A (en) | 1987-03-10 | 1987-03-10 | Capacitor built-in vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5303087A JPS63220612A (en) | 1987-03-10 | 1987-03-10 | Capacitor built-in vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63220612A true JPS63220612A (en) | 1988-09-13 |
Family
ID=12931492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5303087A Pending JPS63220612A (en) | 1987-03-10 | 1987-03-10 | Capacitor built-in vibrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63220612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0397311A (en) * | 1989-09-09 | 1991-04-23 | Murata Mfg Co Ltd | Chip type piezoelectric resonator component |
| JPH06140865A (en) * | 1992-10-26 | 1994-05-20 | Rohm Co Ltd | Piezoelectric oscillator with built-in capacitor and manufacture of the same |
-
1987
- 1987-03-10 JP JP5303087A patent/JPS63220612A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0397311A (en) * | 1989-09-09 | 1991-04-23 | Murata Mfg Co Ltd | Chip type piezoelectric resonator component |
| JPH06140865A (en) * | 1992-10-26 | 1994-05-20 | Rohm Co Ltd | Piezoelectric oscillator with built-in capacitor and manufacture of the same |
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